Shuttle box and binder



May 25, 1937. w. H. BAHAN SHUTTLE BOX AND BINDER Filed Dc. 3 0, 1935 WILLIAM H. BAHAN gmc/who@ Patented May 25, 1937 UNITED sTATEs PATENT OFFICE SHUTTLE BO X AND BINDER 5 Claims.

`'Ihis invention relates to a shuttle box constructionfor looms and more especially to a binder for the shuttle box having means for applying an increasing pressure to the shuttle as it is boxed to stop the same atthe proper point without the necessity of having a check strap.

. This application is a divisional application as to all common subject matter of my co-pending application' Serial No. 42,914, filed on September 30, 1935.

It is an object of this invention to provide an improved binder for a shuttle box having a 'movable lining therein which` is wedge-shaped and which is adapted to be engaged by the side of the shuttle as it travels to boxed position and whereby the `friction between the side of the shuttle and the movable lining will move the lining along with the shuttle so that a thicker portion `of the lining may be drawn between the binder and the shuttle to grip the shuttle and stop the same without the necessity of providing aV check strap for the picker stick.

It is another object of this inventionto provide afshuttle box vfor each end of the lay of the loom having a binder equipped with a movable lining for engaging the side of the shuttle as it enters the shuttle box with means controlled by the movement of the shuttle for producing friction between the side of the shuttle and the movable lining and moving the lining along with the shuttle so that gradually increasing thickened portions of the movable lining will be drawn between the binder and the shuttle for stopping the shuttle at the proper point in the shuttle box.

Means are also provided, when the shuttle is thrown lfrom the box at one end of the lay to the other end by means of the picker stick, for returning the movable lining to its original position so that it will again be engaged by the shuttle when it is thrown again into the shuttle box at the said end of the lay.

It is 4another object of this invention to provide a shuttle box construction comprising a movable lining in the side of the shuttle box for engaging the side of the shuttle, said movable lining decreasing in thickness as it progresses towards the end of the lay. This makes it possible to produce a wedging action4 between the shuttle and the back binder of the lay.

It is another object of this invention to provide a shuttle box for each end of the lay of a loom having one side thereof equipped with a movable liningfor engaging the sides of the shuttle as it enters the loom and means controlled by the movement .of the shuttle Vfor producing friction between the sides of the'shuttle and the movable lining, said means being secured to the lay of the loom.

By using Vthis movable lining together with means for returning the lining to normal position when the shuttle is expelled from the box, it is possible to operate the loom at a much higher rate of speed than is possible using the old type of binder. In the old type of binder the pressure exerted on the shuttle when it enters the box, is constant and therefore, the adjustment had to be made for a given number of picks per minute in a loom., and any slowing down or increase in rate of picks per minute in the loom would result in a bang-oil` or false stopping of the loom. By having the movable wedge-shaped lining for engaging the shuttle, the shuttle is arrested in the proper position regardless of the picks per minute at which the loom is driven.

It is still a further object ointhis invention to provide a shuttle box construction comprising' a movable lining in the side of the shuttle box for engaging the side of the shuttle, said movable lining decreasing in thickness as it progresses towards the end of the lay. This makes it possible to produce a wedgng action when the shuttle contacts the side of the lining thereby causing the friction to be increased in direct proportion to the impact delivered to the shuttle; In this form it is not necessary that an eccentric cam be used since the increase in thickness of the leather lining will effect a wedge-like action when engaged by the shuttle and moved into the space between the shuttle and the binder.

Some of the objects of the invention having been stated, other objects will appear as the description proceeds when taken in connection with the accompanying drawing, in which:- i

Figure l is a plan view of one end of the lay of the loom showing a binder having a movable wedge-shaped lining therein;

Figure 2 is a rear elevation showing the upper side of Figure l, taken along line 2-2 in Figure 1;

Figure 3 is a transverse vertical sectional view taken alone line 3 3 in Figure 1;

Figure 4 is a plan view of the right-hand end of Figure l showing a slightly modied form or a take-up for the movable lining;

Figure 5 is a rear elevation of the upper side of Figure 4 taken along line 5-5 in Figure 4.

Referring more particularly to the drawing, the numeral IG denotes the lay of a loom which has mounted on the upper side thereof a lay cap lila. The laycap supports the conventional box front II which, in turn, has secured to the inner side thereof a leather lining I2 for engaging one side of the shuttle I3 when it is thrown into the shuttle box. The lay cap Illan has a longitudinal slot Illb in the central portion thereof in which a picker stick I4 has reciprocatory movement. The picker stick has a picker I5 on the upper end thereof for receiving the impact from the nose of the shuttle thrown into the shuttle box and for delivering force to the end of shuttle I3 to cause the same to be thrown to the shuttle box at the other end of the lay.

'I'he structure thus far described is conventional but it is thought necessary to show this in order to effectively disclose the present invention.

Pivotally secured as at II on the lay cap Illa is a back piece or binder I8 which has secured to the front inner portion thereof a leather lining 20. This lining cooperates with wedge-shaped lining 65 to provide a lining for the shuttle box for receiving the shuttle I3.

Secured to the back side of member I8 is the wearing member 2I such as leather, which is normally engaged by the conventional spring pressure arm 22 which is pivotally secured as at 23 to a bracket 24. In order to normally hold the free end of arm 22 in engagement with member 2|, a torsion spring 25 is provided. Said arm and its associated parts are conventional and serve to cause the back side wall or binder of the shuttle box to engage the shuttle to produce a certain amount of friction and resiliency.

In order to furthher limit the pivotal movement of the binder I8 about pivot point II, a bracket 30 is secured to the lay cap I0a, said bracket having threadably secured in the upper end thereof a bolt 3| with a resilient tip 32 on the end thereof. The tip 32 is held in proper position by means of a lock nut 33 and this tip serves to limit the outward pivotal movement of binder I8.

Heretofore, when the torsion spring 25 became weak from constant use, a greater amount of rotation has been allowed to binder I8 than has been necessary thereby causing the shuttle I3 to vibrate in the shuttle box. Furthermore, screw 3| insures proper friction being applied to the shuttle to properly and quickly box the same.

The pivoted binder I8 has a roller B0 mounted for oscillation on bolt 6I and also has another roller 62 which is mounted for rotation as at II which is also the pivot point of the binder I8, this being bolt I'I. Mounted on rollers 60 and 62 is a wedge-shaped lining 65 which can be seen in the drawing as decreasing in thickness from the roller 60 to the roller 62. The lining 65 is secured to roller BI) by means of a pin or` screw so that in operation the lining 65 will always occupy the same relative position with regard to roller 60.

The thickest end of lining B5 has secured thereto a tension spring 66 which has its other end secured to a pin 61 mounted on the rear face of binder I8. The smaller end of the lining 65 has a similar spring 68 secured thereto, the other end of which is also secured to pin 67.

When the shuttle I 3 enters the shuttle box, one side thereof engages lining 65 which is of proper thickness to cause the shuttle as it moves into the shuttle box, to carry the lining 65 along with the shuttle and thus draw the thicker portion of the lining between the shuttle and the binder to wedge the shuttle tightly in position and thereby stop the same at the proper time.

This eliminates the necessity of a picker stick check strap and also eliminates any vibration in the shuttle as it is boxed.

The spring 68 moves the loose end of the lining G5 as the shuttle is boxed. This spring is weaker than spring 66 and therefore allows spring G5 to return the lining 65 to normal position when the shuttle is expelled from the shuttle box by the picker stick.

Figures 4 and 5 show a slightly modified form of the means for taking up the slack in the thinner end of the lining 55. It is seen in Figures 4 and 5 that a roller I0 is iixedly mounted on a pin 1I which takes the place of pin I'I. This pin is rotatably mounted in the end of the binder I8 and of course the binder I8 has swinging movement on pin 1I. The upper end or head portion of pin 'II has secured thereto one end of torsion spring 'I3 and the other end of the torsion spring is secured as at I4 to the top of shield 15. In this form the lining 65 is secured as at 'I'I to the roller 10. The other end of the lining 65 is secured to the end of spring 66 in the same manner as shown in Figure l. The torsion spring 13 normally resists the action of spring 66 to hold the leather lining in stretched position so that the shuttle I3 will properly engage this lining when it enters the shuttle box. Otherwise, the form shown in Figures 4 and 5 is identical to the form shown in Figures 1 and 2.

It is thus seen that I have provided a movable wedge-shaped lining for a shuttle box which will apply increasing pressure to the side of the shuttle as it moves into the shuttle box to stop the same at the proper position and thus eliminate the necessity for the check strap for the picker stick. It is also seen that this lining returns to normal position after each expulsion of the shuttle from the shuttle box and is not a step by step progression of the lining member.

In the drawing and specification there has been set forth a preferred embodiment of the invention, and although specific terms are employed, they are used in a generic and descriptive sense only, and not for purposes of limitation, the scope of the invention being set forth in the appended claims.

I claim:

1. In a loom having a lay and a shuttle box at each end of the lay, a picker having a picker stick attached thereto for receiving and stopping the shuttle and for projecting the shuttle from the box, a pair of spaced rollers mounted in one side of the shuttle box, a wedge-shaped lining mounted on said rollers and being movable by the shuttle as it travels in the box to apply gradually increasing pressure to the sides of the shuttle to stop the shuttle at the proper position in the box.

2. A loom having a shuttle and a picker, a shuttle box having a binder pivoted at one of its ends, a pair of pulleys located at spaced points on the binder, a movable lining for the binder mounted on said pulleys and having a portion located for engagement with the shuttle travelling in the box, said movable lining being wedgeshaped whereby when it is moved by contact with a travelling shuttle the thicker portion of the lining will be moved between the binder and the shuttle to arrest the motion of the shuttle.

3. A shuttle box for looms having a binder equipped with a fixed lining for a portion of its length and having a tapered movable lining for another portion of its length which is movable by contact with the shuttle as it moves into and out of the shuttle box, said binder having a recess in its side wall through which one end of said movable lining projects, a roller disposed adjacent said recess for supporting the movable lining, means normally moving the movable lining to a position where its thinnest portions will remain adjacent the side wall of the binder, and whereby the shuttle upon entering the box will contact and move the movable lining to draw the thicker portions thereof between the shuttle and the binder to exert a wedging action on the shuttle to stop the same.

4. In a shuttle box for the lay of looms having a box front, a picker travelling therein and a picker stick for supporting the picker, a binder pivotally secured at one of its ends to the lay and having means normally resisting outward swingi'ng movement of the free end of the binder, a recess in said binder, a roller disposed in said recess, a tapered movableV lining for the binder mounted on said roller and having the thicker end thereof normally out of contact with the inner face of the binder, the shuttle upon entering the shuttle box contacting the movable lining and drawing the thicker end of the lining between the binderV and the shuttle to stop the shuttle, and means for returning the movable lining to normal position when the shuttle is ejected from the shuttle box.

5. In a loom having a shuttle box at each end thereof for receiving and boxing a shuttle, each box comprising a box front and a binder and a picker stick having a picker on the upper end thereof, said binder having its outer end pivotal- 1y mounted on the lay, tension means normally resisting outward swinging movement .of the free end of the binder, said binder having a slot intermediate its ends and passing transversely therethrough, a pulley mounted in said slot. a second pulley mounted at the outer end of the binder, a wedge-shaped lining for the binder having its thicker end mounted on the first pulley and its thinner end mounted on the second pulley, tension means normally holding the lining in one position, the lining, upon engagement with an entering shuttle being movable by the shuttle to draw the thicker portion thereof between the binder and the shuttle to stop the same.

WILLIAM H. BA1-IAN. 

